var Popup=new Class({Implements:[Options,Events],options:{bgcolor:'#ffffff',opacity:0.4,windowId:false,backWindowId:'backWindowId',fadeTime:100,closeBut:false,contentId:false,closeTime:100,backTime:100,isCentre:false},initialize:function(element,options)
{this.setOptions(options);this.fade=null;this.open();$$(this.options.closeBut).addEvent('click',function(){this.close();}.bind(this));if(this.options.isCentre)window.addEvent('scroll',function(){if($(this.options.windowId).getCoordinates().top>=0)$(this.options.windowId).centre();}.bind(this));},open:function()
{$(this.options.windowId).setOpacity(0);$(this.options.windowId).centre();new Fx.Morph(this.options.windowId,{duration:this.options.fadeTime}).start({'opacity':[0,1]});this.fadeOn();},close:function()
{if($(this.options.windowId).style.top=='-1000000px')return;new Fx.Morph(this.options.windowId,{duration:this.options.closeTime}).start({'opacity':[1,0]},function(){$(this.options.windowId).style.top='-1000000px';});$(this.options.windowId).style.top='-1000000px';var selector='#'+this.options.windowId+' input:text';jQuery(selector).val('');selector='#'+this.options.windowId+' input:checkbox';jQuery(selector).attr('checked','');selector='#'+this.options.windowId+' input:password';jQuery(selector).val('');this.fadeOff();},fadeOn:function()
{this.setupFadeElement();this.fade.style.position='absolute';this.fade.style.backgroundColor=this.options.bgcolor;this.fade.style.top=0;this.fade.style.left=0;this.fade.style.width=window.getScrollSize()['x']+'px';this.fade.style.height=window.getScrollSize()['y']+'px';this.fade.style.zIndex=$(this.options.windowId).getStyle('z-index').toInt()-1;new Fx.Morph(this.fade.id,{duration:this.options.backTime}).start({'opacity':[0,this.options.opacity]});},fadeOff:function()
{this.setupFadeElement();new Fx.Morph(this.fade.id,{duration:this.options.backTime}).start({'opacity':[this.options.opacity,0]}).addEvent('complete',function(){this.fade.dispose();}.bind(this));},setupFadeElement:function()
{if(this.fade)return;if(!$(this.options.backWindowId))
{this.fade=new Element('div',{id:this.options.backWindowId+parseInt(Math.random()*1000000)});this.fade.setOpacity(0);this.fade.inject(document.body,'top');}
else this.fade=$(this.options.backWindowId);}});Element.implement({makePopup:function(options){return new Popup(this,options);}});